Stopped receiving emails from successful backups or any communication altogether such as cron jobs.

[Jarvar]

I'm wondering if any body else is having issues. I have stopped receiving notifications from PVE. Either through Outlook or Gmail accounts.
Could this have to do with their emails becoming more secure? Or perhaps this is an internal issue?
I would appreciate help.
I think the latest email I received was from July 14.
Any help would be helpful.
Thank you.

 

[Stoiko Ivanov]

Check the journal of your pve node for anything that might explain the error - if it's setup with the ISO - look for messages from postfix

I hope this helps!

 

[Jarvar]

Check the journal of your pve node for anything that might explain the error - if it's setup with the ISO - look for messages from postfix

I hope this helps!

Thanks, I'm not sure what to look for.

18 23:15:01 khd-pve-01 postfix/qmgr[2032]: 6400A51BD5: from=<root@khd-pve-01.xxxxxx.ca>, size=8118, nrcpt=1 (queue active)
Jul 18 23:15:01 khd-pve-01 pvemailforward[41235]: forward mail to <xxxxxx@gmail.com>
Jul 18 23:15:01 khd-pve-01 postfix/pickup[49780]: C146E52007: uid=65534 from=<xxxxx@gmail.com>
Jul 18 23:15:01 khd-pve-01 postfix/cleanup[41230]: C146E52007: message-id=<20220719031501.6400A51BD5@khd-pve-01.khdentistry.ca>
Jul 18 23:15:01 khd-pve-01 postfix/qmgr[2032]: C146E52007: from=<xxxxx@gmail.com>, size=8309, nrcpt=1 (queue active)
Jul 18 23:15:01 khd-pve-01 postfix/local[41233]: 6400A51BD5: to=<root@khd-pve-01.xxxxxx.ca>, orig_to=<root>, relay=local, delay=0.42, delays=0.05/0.03/0/0.33, dsn=2.0.0, status=sent (delivered to command: /usr/bin/pvemailforward)
Jul 18 23:15:01 khd-pve-01 postfix/qmgr[2032]: 6400A51BD5: removed
Jul 18 23:15:02 khd-pve-01 postfix/smtp[41239]: connect to gmail-smtp-in.l.google.com[2607:f8b0:4004:c0b::1a]:25: Network is unreachable
Jul 18 23:15:02 khd-pve-01 postfix/smtp[41239]: C146E52007: to=<xxxxxxx@gmail.com>, relay=gmail-smtp-in.l.google.com[142.250.31.26]:25, delay=0.62, delays=0/0.03/0.39/0.19, dsn=5.7.25, status=bounced (host gmail-smtp-in.l.google.com[142.250.31.26] said: 550-5.7.25 [162.252.253.94] The IP address sending this message does not have a 550-5.7.25 PTR record setup, or the corresponding forward DNS entry does not 550-5.7.25 point to the sending IP. As a policy, Gmail does not accept messages 550-5.7.25 from IPs with missing PTR records. Please visit 550-5.7.25 https://support.google.com/mail/answer/81126#authentication for more 550 5.7.25 information. v15-20020a05622a188f00b0031f00a46c86si145537qtc.389 - gsmtp (in reply to end of DATA command))
Jul 18 23:15:02 khd-pve-01 postfix/cleanup[41230]: 69B6B52008: message-id=<20220719031502.69B6B52008@khd-pve-01.khdentistry.ca>
Jul 18 23:15:02 khd-pve-01 postfix/qmgr[2032]: C146E52007: removed
Jul 18 23:16:00 khd-pve-01 systemd[1]: Starting Proxmox VE replication runner...

 

[Stoiko Ivanov]

he IP address sending this message does not have a

PTR record setup, or the corresponding forward DNS entry does not

point to the sending IP. As a policy, Gmail does not accept messages

from IPs with missing PTR records.

. Please visit

https://support.google.com/mail/answer/81126#authentication for more

nformation.

put shortly - your DNS setup is so that gmail won't accept mail from this host (unless you authenticate to them - via your gmail account) - check out the link - also there are quite a few threads in this forum that explain how to setup authentication with gmail servers